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1. 发明授权

US5786581A Optical system for scanning and recording bar codes which is adapted to be configured in a hand held unit 失效
标题翻译：用于扫描和记录适于配置在手持单元中的条形码的光学系统
公开(公告)号：US5786581A
公开(公告)日：1998-07-28
申请号：US755354
申请日：1996-11-25
申请人： Jay M. Eastman , Anna Marie Quinn , Scott R. Grodevant , John A. Boles
发明人： Jay M. Eastman , Anna Marie Quinn , Scott R. Grodevant , John A. Boles
IPC分类号： G06K7/10 , G06K7/12
CPC分类号： G06K7/10851 , G06K7/10584 , G06K7/10594 , G06K7/10633 , G06K7/10683 , G06K7/10811 , G06K7/10881 , G06K2207/1012 , G06K2207/1016 , G06K2207/1018
摘要： A unitary hand-held bar code scanner and reader produces an elliptical beam, oriented with its major axis along the direction of the bars, utilizing optics employing far field diffraction effects to shape the beam and maintain its elliptical aspect (length to width ratio) constant over a distance in front of the scanner were bar codes may be located. The optics eliminates parallax even though the photodetector and light source (preferably a laser diode) are located offset from each other on a board on which the optics are mounted. A housing assembly has channels which mount the board therein without shock absorbing devices. A digital microcomputer controller and peripheral devices regulate the optical power output from the laser diode and prevents catastrophic failure, if the electrical current through the laser diode exceeds safe limits. Digital control of the gain of the electronic circuits which provide the signals from which bar code information can be decoded and for the operation and control of a motor for oscillating a deflector which scans the beam across the code are also provided utilizing the microcomputer. The microcomputer also controls interface circuits to provide compatibility with auxiliary equipment and host computers which generate commands and requires data inputs of various polarity and format.
摘要翻译：单一的手持式条形码扫描器和读取器产生椭圆形光束，其长轴沿着条的方向定向，利用采用远场衍射效应的光学器件来形成光束并保持其椭圆形方向（长宽比）恒定扫描仪前面的距离可能位于条形码。即使光电检测器和光源（优选地是激光二极管）在安装光学器件的板上彼此偏移地定位，光学器件消除了视差。壳体组件具有将板安装在其中而没有减震装置的通道。如果通过激光二极管的电流超过安全限制，数字微机控制器和外围设备调节激光二极管的光功率输出并防止灾难性故障。提供可以解码条形码信息的信号的电子电路的增益的数字控制以及用于振荡跨越码的扫描光束的偏转器的电动机的操作和控制也利用微型计算机提供。微型计算机还控制接口电路以提供与辅助设备和生成命令的主计算机的兼容性，并且需要各种极性和格式的数据输入。

2. 发明授权

US5750976A Optical system for scanning and reading bar codes which is adapted to be configured in a hand held unit 失效
标题翻译：用于扫描和读取适于配置在手持单元中的条形码的光学系统
公开(公告)号：US5750976A
公开(公告)日：1998-05-12
申请号：US536787
申请日：1995-09-29
申请人： Jay M. Eastman , Anna Marie Quinn
发明人： Jay M. Eastman , Anna Marie Quinn
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G06K7/10584 , G06K7/10594 , G06K7/10633 , G06K7/10683 , G06K7/10811 , G06K7/10881 , G06K2207/1012 , G06K2207/1016 , G06K2207/1018
摘要： A unitary hand-held bar code scanner and reader produces an elliptical beam, oriented with its major axis along the direction of the bars, utilizing optics employing far field diffraction effects to shape the beam and maintain its elliptical aspect (length to width ratio) constant over a distance in front of the scanner were bar codes may be located. The optics eliminates parallax even though the photodetector and light source (preferably a laser diode) are located offset from each other on a board on which the optics are mounted. A housing assembly has channels which mount the board therein without shock absorbing devices. A digital microcomputer controller and peripheral devices regulate the optical power output from the laser diode and prevents catastrophic failure, if the electrical current through the laser diode exceeds safe limits. Digital control of the gain of the electronic circuits which provide the signals from which bar code information can be decoded and for the operation and control of a motor for oscillating a deflector which scans the beam across the code are also provided utilizing the microcomputer. The microcomputer also controls interface circuits to provide compatibility with auxiliary equipment and host computers which generate commands and requires data inputs of various polarity and format.
摘要翻译：单一的手持式条形码扫描器和读取器产生椭圆形光束，其长轴沿着条的方向定向，利用采用远场衍射效应的光学器件来形成光束并保持其椭圆形方向（长宽比）恒定扫描仪前面的距离可能位于条形码。即使光电检测器和光源（优选地是激光二极管）在安装光学器件的板上彼此偏移地定位，光学器件消除了视差。壳体组件具有将板安装在其中而没有减震装置的通道。如果通过激光二极管的电流超过安全限制，数字微机控制器和外围设备调节激光二极管的光功率输出并防止灾难性故障。提供可以解码条形码信息的信号的电子电路的增益的数字控制以及用于振荡跨越码的扫描光束的偏转器的电动机的操作和控制也利用微型计算机提供。微型计算机还控制接口电路以提供与辅助设备和生成命令的主计算机的兼容性，并且需要各种极性和格式的数据输入。

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